package com.zdy.demo;

/**
 * Created by 逸足天涯
 * on 3/8/2020.
 */
//模拟龟兔赛跑
public class Race implements Runnable {
    //胜利者
    private static String winner;

    @Override
    public void run() {
        for (int i = 0; i <= 100; i++) {
            //判断比赛是否结束
            Boolean flag = gameOver(i);
            if(flag){
                break;
            }
            System.out.println(Thread.currentThread().getName()+ "跑了" +i+"步");
        }
    }
    //判断是否有胜利者

    public boolean gameOver(int steps){
        //判断是否有胜利者
        if (winner != null){//已经存在胜利者了
            return true;
        }{
            if (steps == 100){
                winner = Thread.currentThread().getName();
                System.out.println("winner is " + winner);
                return true;
            }
        }
        return false;
    }

    public static void main(String[] args) {
        Race race = new Race();
        new Thread(race,"兔子").start();
        new Thread(race,"乌龟").start();
    }
}
